L13 Plant Cells II

L13 Plant Cells II - 1. 2. 3. 4. 5....

Info iconThis preview shows pages 1–11. Sign up to view the full content.

View Full Document Right Arrow Icon
Review of Lecture 12 1. Plant Cell Structure: Chap.2 2. Cells and Cell Theory 3. Prokaryotes and Eukaryotes 4. Common Organelles 5. “Signature” Organelles
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Prokaryotic or Eukaryotic 1. First forms of life on earth were prokaryotes (3.5 billion  years ago) 2. For about 1.4 billion years no other organisms existed 3. Eukaryotes evolved from prokaryotes 4. Eukaryotic cells are generally more complex and larger than  prokaryotic cells 5. Prokaryote from Latin meaning “before the nucleus” 6. Eukaryote from Latin words meaning “true nucleus
Background image of page 2
Structure of a typical plant cell Chap.2, pg.32
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Signature Plant Cell Organelles Chloroplasts 1. C ontain chlorophyll pigm ent and are the site of  photosynthesis 2. Larger than m itochondria (5x or m ore) 3. C ells can have one or to several hundred chloroplasts 4. Have two outer m em branes and circular  chrom osom e 5. Have series of internal, m em brane-bound sacs called  thylakoids
Background image of page 4
Biological Solar  Panel Biological Solar  “Cell” Biological Storage  Units Solar Power Chap.2,pg.34
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Signature Plant Cell Organelles Vacuoles 1. Up to 90%  of the volum e of a m ature plant cells is occupied  by the central vacuole 2. From  Latin, vacuus meaning “empty” (as it appears under the  microscope) 3. Central vacuole does have content and plays important metabolic roles 4. Site for sequestering toxic compounds, storage of ions and water,  formation of crystals, break down of large macromolecules 5. Helps maintain cell shape 6. Surrounded by  tonoplast  m em brane  
Background image of page 6
Central Vacuole Chap.2, pg.35
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The challenges 1. Harvesting light energy 2. Staying wet when things get dry 3. Dealing with gravity 4. Divide or be conquered  5. Leveraging resources
Background image of page 8
Lecture 13 Outline Plant Cell Structure II: Chapter 2 1. The Cytoskeleton 2. Motor proteins 3. Cell Membranes 4. Cell Walls 5. Plasmodesmata
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Plant Cell Structure II The Cytoskeleton (“cell skeleton”) 1. Determines cell shape, organelle anchoring and cargo  movement 2. Network of thread-like proteins found throughout the cytosol 
Background image of page 10
Image of page 11
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/23/2010 for the course BIOL 120 taught by Professor Chuong during the Spring '09 term at Waterloo.

Page1 / 40

L13 Plant Cells II - 1. 2. 3. 4. 5....

This preview shows document pages 1 - 11. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online